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A038874 as a simple table

na(n)
12
23
311
413
523
637
747
859
961
1071
1173
1283
1397
14107
15109
16131
17157
18167
19179
20181
21191
22193
23227
24229
25239
26241
27251
28263
29277
30311
31313
32337
33347
34349
35359
36373
37383
38397
39409
40419
41421
42431
43433
44443
45457
46467
47479
48491
49503
50541
51563
52577
53587
54599
55601

[2,3,11,13,23,37,47,59,61,71,73,83,97,107,109,131,
 157,167,179,181,191,193,227,229,239,241,251,263,
 277,311,313,337,347,349,359,373,383,397,409,419,
 421,431,433,443,457,467,479,491,503,541,563,577,
 587,599,601]